ROM Hack BotW Save Converter (Switch <-> Wii U)

[ShadowOne333]

A repository appeared on GitHub which apparently converts saves from the Wii U Save file format into the Switch's File format so that you can transfer your save from the Wii U version to the Switch's and viceversa.

Link to the latest Save Manager for BotW Switch (with UI):
https://github.com/JordanZeotni/BotW-Save-Manager


And for additional info, here's the Save Dump and Inject programs by Rei:

Save dump
https://gist.github.com/Reisyukaku/aaa8d0ab0974122b5c37d359c3cb1015

Save inject
https://gist.github.com/Reisyukaku/dba796a54d2c92e2c356153a418ca034

 

[MushGuy]

Now, how can the save be transfered to the Switch? Will something similar be done to Hyrule Warriors and other Wii U to Switch ports?

 

[ShadowOne333]

Now, how can the save be transfered to the Switch? Will something similar be done to Hyrule Warriors and other Wii U to Switch ports?

Maybe?
It depends on how different the ports are form each other.
BotW was a dual release on the same day (for both Wii U and Switch version).

But for HWDX, things are different, as that one has a lot more things into it for saving compared to the Wii U version.

 

[_______]

As long as we don’t have a save injector, this isn’t much of use. Too bad.

 

[Rune]

So if we can't use the Switch save file, how do we know if this convertor even works?

 

[Arck]

As long as we don’t have a save injector, this isn’t much of use. Too bad.

We have that already:
Save dump
https://gist.github.com/Reisyukaku/aaa8d0ab0974122b5c37d359c3cb1015

Save inject
https://gist.github.com/Reisyukaku/dba796a54d2c92e2c356153a418ca034

But I don't think it's going to work if your WiiU/Switch BOTW doesn't have the same version.

 

[ShadowOne333]

We have that already:
Save dump
https://gist.github.com/Reisyukaku/aaa8d0ab0974122b5c37d359c3cb1015

Save inject
https://gist.github.com/Reisyukaku/dba796a54d2c92e2c356153a418ca034

But I don't think it's going to work if your WiiU/Switch BOTW doesn't have the same version.

Thanks for those.
I already knew there was a way to dump saves, but not that we could inject them as well.
Added them to the OP.

 

[matias3ds]

So can i transfer the save of my switch to the wii u right now ???

 

[ShadowOne333]

So can i transfer the save of my switch to the wii u right now ???

Should be possible, yes.
Just make sure both versions of BotW have the same update version and/or DLC version as well.

 

[eXzoN]

Would it possible to:
1. dump the savegame from the switch
2. convert it to wii u savegame format
3. edit the wii u savegame with a wii u botw save editor
4. convert it back to switch savegame format
5. inject it to the switch
6. profit?

 

[ShadowOne333]

Would it possible to:
1. dump the savegame from the switch
2. convert it to wii u savegame format
3. edit the wii u savegame with a wii u botw save editor
4. convert it back to switch savegame format
5. inject it to the switch
6. profit?

I don't see why not.
Dump the Switch file and convert it to Wii U format, then try to load it up in the editor.
Should work in theory.

 

[matias3ds]

Should be possible, yes.
Just make sure both versions of BotW have the same update version and/or DLC version as well.

how do i download the zelda save from my switch ? Is there a tutorial ?

 

[ShadowOne333]

how do i download the zelda save from my switch ? Is there a tutorial ?

I believe the instructions are in the Save Dump link.

 

[Deleted User]

A pleasant surprise to see those save files to be compatible.

 

[eXzoN]

I tried to dumped the savegame of botw but if got an error message:

ERROR: [6, 'sc.getFSPPR is not a function. (In \ 'sc.getFSPPR()\', \ 'sc.getFSPPR\' is undefined)' ]

1. I've copied the file in to my usefulscripts folder & changed the title id
2. run botw and go back to the home menu
3. start pegaswitch
4. I've run evalfile ./usefulscripts/save_dump.js
5. error in the pegaswitch terminal appeared

seams like the function getFSPPR is not included to pegaswitch?

EDIT:
used a fork from 3096 with implemented getFSPPR
last function is not working:

ERROR: [ 826, '0xe02 (High byte in input u64 is zero. in module FS)' ]

 

[ShadowOne333]

I tried to dumped the savegame of botw but if got an error message:

ERROR: [6, 'sc.getFSPPR is not a function. (In \ 'sc.getFSPPR()\', \ 'sc.getFSPPR\' is undefined)' ]

1. I've copied the file in to my usefulscripts folder & changed the title id
2. run botw and go back to the home menu
3. start pegaswitch
4. I've run evalfile ./usefulscripts/save_dump.js
5. error in the pegaswitch terminal appeared

seams like the function getFSPPR is not included to pegaswitch?

EDIT:
used a fork from 3096 with implemented getFSPPR
last function is not working:

ERROR: [ 826, '0xe02 (High byte in input u64 is zero. in module FS)' ]

I would suggest you get in contact with Rei himself or someone from the Reswitched team perhaps, they might be able to help you out in details with those issues.

 

[Rob Blou]

OMG! Thanks to whoever is involved in this!! I've been requesting that to Nintendo. Too bad I'm on FW 4.1 but I'll wait for sure

 

[_______]

Would it possible to:
1. dump the savegame from the switch
2. convert it to wii u savegame format
3. edit the wii u savegame with a wii u botw save editor
4. convert it back to switch savegame format
5. inject it to the switch
6. profit?

I believe you can just edit the Save Editor to use little endian value so you can edit Switch save directly.

But is there a way to update BotW to 1.5.0 w/o updating the fw since 3.0.0? Afaik it's not possible.

 

[Ericthegreat]

Someone tell that guy from yesterday who everyone told would be impossible!

 

[eXzoN]

I believe you can just edit the Save Editor to use little endian value so you can edit Switch save directly.

But is there a way to update BotW to 1.5.0 w/o updating the fw since 3.0.0? Afaik it's not possible.

I don’t know my botw came with version 1.0.0 do we need to update the game first?


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